What is typesetting?
It seems to me that it is a reference to a bye-gone era when printing presses used by newspapers and such were operated by manually laying the letters out before the printing began. I think the same term applies today to preparing a text for printing using a computer. The term as used today refers to the preparation of text and includes making informed choices of typeface, point size and leading to enhance the readability and message.
John W. Seybold has written: 'The primer for computer composition' -- subject(s): Computerized typesetting 'The world of digital typesetting' -- subject(s): Computerized typesetting, Digital techniques, Type and type-founding, Typesetting 'The Philadelphia printing industry' -- subject(s): Collective bargaining, International Typographical Union of North America, International Typographical Union of North America. Union No. 2, Philadelphia, Printing Industries of Philadelphia, inc, Printing industry